The Centurion name was first used on a Buick concept car in the 1956 Motorama. It featured a red and white fiberglass body, airplane like interior design. a full clear "bubble top" roof and the first Backup camera in place of a Rear view mirror, although it was never shown to be functional, merely a concept. This car currently resides in the Sloan Museum at the Flint Cultural Center in Flint, Michigan.
Source: Wikipedia (original)